Typewriter



v. xHRlsKf TYPEWRITER Dec. 6? 192 Filed Nov. 29. 1926 4 sheets-sheet 2 Fig?) v. lHRlsKY Dec. 6, 1927-.

TYPEWRITER Filed Nov. 29. 1926 4 Sheets-Sheet 5 v. IHRISKY TYPEWRITER Dec. 6, 1927. 1,651,455

Filed Nov. 29. 192e 4 sheets-sheet 4 Vina-nad Der.' e 1927.

voJ'rOH marsx', or BELA rm vanm, 'CZECHOSLOVAKIA TYPEWRITER.

Applicationled November 29, 1928, Serial No. 151,526, and in Czechoslovakia June 9, '1925.

This invention relates to typewriters and has for its object to provide a' pocket typef writer, with which journalists, reporters and the like, lwhen journeying, at public meetings 5 and the like may rapidly commit what they hear to paper, without being kept by the typewriter to one place. By means of the typewriter according to the invention they are given complete freedom of movement as l regardsthe choice of their stance'when taking down the reports. The only condition is that the person using the machine shall have both hands free.

The invention consists more particularly l in this, that the alphabet is simplified and that a common sign is used for phonetically similar vowels or diphthongs, so that in any language 16 signs are found to suiice. lVith the aid of these 16 signs the reporter can then reproduce this report in full, as his'memory will be assisted by the phonetic writing.

According to the invention only 16 pho` netic signs are used whichv are distributed over two keyboards, such that each finger of each hand has two signs to manipulate. The keyboard carriers are so constructed that they may be easily held in the hand. The keys of the keyboards or the levers for the same transmit the movement of the keys to the writing part proper by means of Bowden wires and the like. The writing part of the pocket typewriter is made very small, so that it may be conveniently placed ina coat pocket. It is connected to the two keyboards as o already stated `by `Bowden wires or push cables, which may be of any suitable length.

The accompanying drawings illustrate the invention,

Fig. 1 being asection through the writing part of the machine in front elevation,

Fig. 2 a cross-'section through the writing part,

Fig. 3 a section through the o erating mechanism of the writing part seenV rom the front,

Fig. 4 a section through one of the keyboards,

Fig. 5 a -view from above on one of the keyboards in section,

Fig. 6 a detail of Fig. 4,

Fig. 7 a detailof Fig. 1,

. Fig. 8 isa side view of the mechanism for rolling up and unrolling the ink ribbon,

Fig. 9 is a view from the front in section Of F 8',

Fig. 10 is-a diagrammaticyiew of the type arrangement of the writing part, and

Fig. -ll'an example ofthe distribution Of the phonetic signs to the separate keyboards, letters being chosen in the present case as phonetic signs.

' The writing part of the pocket typewriter shall now be described with reference to the accompanying drawings. 1n the casing 1 (Figs. 1, 2.and 3), in the lower part thereof, on a shaft 38 two reels9, 9 are mounted, which are kept at a certain distance apart by the`pedestal 10. On these reels 9, 9 the i paper band 8 on which the phonetic signs are wrltten is rolled and unrolled. The paperband 8 is guided over guide rollers 4, 4

journalled in brackets 2; such that it always occupies correct vposition on the platen 5, which acts' as the support, when writing. The paper band is always kept taut, so that it acts on the loose platen 5 in the manner of a driving belt. The paper band reel 9 is mounted loosely on the shaft 38, and is under the actionof braking means 11, so that a certain application of force is required for turning it. The reel 9 is connected to the shaft 38 in such a manner that it is only slidable axially and must take part in the rotary motion of the shaft 38. The shaft 38 is driven by the driving mechanism housed in the casing 40.

The driving mechanism comprises va- Cpl there engages the pinion 46 which is mounted on the squarepart 38 of the shaft 38. By

the square art 38 and the hub of the pinion J46 the sha t 38 is coupled `with the driving mechanism. By winding up the spring 43 which acts like a clock spring the shaft 72 and with it the toothed wheel 45, 46 and the shaft 38 along with the drum 9 are caused to rotate,.the rotary motion being rendered intermittent by a device to be described below.

` In order to obtain a signal that the spring 43 isrun down and that it is necessar for it to be rewound a special signalling evice is provided in the casing 40. It consists of va system of levers, whichcauses a signal bell 8 and 9).

to sound. The system of levers operates as :follows: The arm 69 of the two-armed lever 69 61 rests against the spiral spring 48 and is kept pressed against the same by means of the spring 59. When the spiral spring 43 is in the wound up state, the .upwar swing of the lever arm 60 will be greatest. The arm 61 is connected by means of a coupling member 62 to the pawl G1 which is guided in a sleeve 62. Through the upward swing of the arm 60 the pawl 61 is moved out of reach of the teeth 68 ot' the toothed wheel 44. The toothed wheel 44 is fixed to the outer periphery of the internally toothed wheel 45 or is made integral with the same. The sleeve 62 is rigidly connected to the twoarmed lever 64, 69. The arc 64 is itself connected to a spring 65. The unsupported end of the lever 69 is provided with a clapper 7 0 which causes the bell 7l to sound. On the lever arm 60 being forced downwards through the spring 43 uncoiling, the lever arm 61 by means of the member 62 pushes the pawl 61 into engagement with the teeth 68 and is carried round when the ratchet wheel 44 is turned, until it slips olf the tooth 68. Through the rocking motion of the awl 61 the two-armed lever 64, 69 is rocked y means of the sleeve 62 and the spring 65 is loaded. On the pawl 61 being released by the tooth 68, the spring nieves the lever 69 in the direction towards the bell 71 and the clapper can cause the latter to sound. The movemnt of the lever 69 towards the bell 71 is limited by the stop member The motion of the ink ribbon is also derived from the driving mechanism inthe casing 40.- The rotary motion of the pinion 46 is transmitted from the hub 47 thereof by means o a driving band or cord 48 to the hub 49 of the toothed wheel 52. The toothed wheel 52 is mounted on'a lever 50 which is capable of rocking on the pin 51. According `as the lever 50 is rocked by means ofthe lug 53 projecting from the casing, either the ink ribbon reel 12 or 12 becomes operative as a driven member. The ink -ribbon reels 1 2, 12 are coupled by means of the coupling parts 18, 18 to the toothed wheels 52, 57 or their coupling parts 54, 54. For making the ink ribbon reels reversible a toothed wheel 55 for instance is provided between the toothed wheel 52,.a nd the ,toothed wheel 52 on the lever 50.

The ink ribbon reels 12, 12 are journalled in the arms 2 of the brackets 2 ,(see Figs. In order to check 'whether there is still suliicient ribbon wound on the reel 12, a separate indicating arrangement is provided. This arrangement consists of a `two-armed lever 13,15wh1ch 1s mounted on the arbor 15 journalled in bearinws in the brackets 2. -On one end of the ever is mounted 4the roller 13 which rests against msnm the ink ribbon, the roller 13 being pressed 65 against the ribbon by the spring 14 which abuts against the fixed part 2 and acts on the other arm 15 of the lever. According as there is more or less ribbon wound on the reel 12 the lever 13 is rocked aside to a greater or less extent. The rocking motion of the lever or the arbor 15 is transmitted by means of a band 17 to the pointer 17 which will thus swino more or less to the left or right and according to the position of which, as observed through a window in the casing 1, not shown in the drawing, it is possible to see whether there is still suflicient ribbon on the reel 12.

Both the paper band 8 and the ink ribbon must have an yintermittent motion imparted to them. For this purpose another system of levers is provided, which is mounted on one of the brackets 2, see Fig. 1. The system of levers consists of the two-armed lever 19, 29 which is pivoted on thepin 39. This two-armed lever is always kept in an extreme position by the spring 8O which engages with the arm 29. The lever arm 19 is connected by means of a link 20 to the lever 21 which lever is connected by the pin 21 to the threearmed lever 22, 23, 26 (see Fig. 7). The lever arm 28 strikes against the sto member 24 and thereby limits the throw o the lever arms 22 and 26. At the ends of the lever arms22 and 26 are inwardly projecting lugs which engage in the teeth of the toothed wheel 6. In the lever arm 26 which is hollow there slides the plunger 25', on the end of which is the lug 25, the plunger being kept pressed outwards by the spring 26. The stroke of the plunger is limited by the screw 28 which engages in the groove 27 o f the plunger 25 On the lever arm 19 being forced inwards in a manner to be described below, the lever arm 22 is also forced downwards by the link 20, the lever 21 and the pin 21 into one of4 the gaps between the teeth of the toothed wheel 6. By the same movement the lever arm' 26 is swung out of the gap between the teeth. This prevents thetoothed wheel 6 being turned by the tension of the paper band 8, as the lug on the lever 22 holds one of the teeth. On the tooth 7 being released by the lug 25, the latter will be forced by the spring 26 out of the arm 26', at least by the thickness of a tooth lus the thickness of the lug. the. tooth 7, when the lever 26 is rocked' aside, it becomes possible for the entire system of levers to return immediately into the position of rest,as', each time the system .of levers returns, the lug 25 will engage in a gap between the teeth and, owing to the lug 25 bcingforced out, no tooth of the toothed wheel 6 prevents the lever from rocking. The lever 22 with its hooked end Through the ug 25 lying above4 roo .sirgle step.

only acts as a d etent for preventing the drum from belng turned more than a wing to the fact, that through the arrangement just 'described the paper band can onl travel forward intermittently, the reel 9 will 4also only be able to wind up intermittently 'and the driving spring 43 of the driving mechanism unloaded and the ink ribbon fed forward intermittentl as the ink ribbon reelsfare driven from 'e hub 47 of the pinion 46.

On the casing 1 the type container 36 is mounted. As will be seen from Figs. 1

f and 10 the types are so arranged that four types can always strike the ribbon simul-` taneously. The types 33 are guided in guiding channels 35 in such a manner that,

when operated, they strike the ribbon. As will be seen from Figs. 1 and 10 the middle four type guides are perpendicular to the ribbon, while the type guides of the laterally placed types-are inclined to the horizontal,

suchthat, onthe types of the quadrant I --lli being depressed, the types in the said quadrant will strike that part, where the mlddle type 33 strikes the ribbon. In the quad- .rants II, III, IV `the arrangement is the same as in the quadrant I. The types are connected to pressure applying members 34, 34', 34 and so on, which in the present case may be rigid steel wires, the pressure applying members being connected through the cables or conduits 37, 37 to the keyboard,

where they are connected to the correspond in levers of the keys.

he keys 72, 73 (see Figs. 4 to 6) `by means of which the types 33 are operated, are

mountedso as to rotate on the pins77 in a 'casing 91. By depressing one of the keys,

for instance the key 73, the two-armed lever 7 3 is rocked, the other end of which is provided with a pawl 76 which is rotatable about the pin 75 and has a small plate 74 on its upper side, which strikes against the adjustable stop member 88, causing thepawl 76 to rock, on the lever 73 moving upwards. The pawl 76 itself yis kept pressed bythe spring 94 into one of its extreme positions. A projection 93-on the pawl 76 engages with the ,projection 92 on the two-armed key -lever which is mounted so as to rock on the pin 78 (see Fig. 6). On the lever 73', 73" being rocked, the key lever 79, which is carried along by the pawl 76 is also rocked, until the pawl 76 is turned by the `Vstop member 88, so that the two lugs 92, 93 cease to engage, whereby thekey lever 79 is liberated.

,. On the key lever 79 moving downwards the pressure applyingmember 34 which is guided in 'the guide 35 is also moved and one of the types 33 (Fig. 1) is ycaused to strike the ribbon. Between the two levers 7 3' and' 79 end of which rests against a Xed stop 84 and the other end of which rests against the collar 82. On the-key lever 79 being moved downwards, the spring 83 is compressed and throws the key lever 79 back into its initial position, as soon as thel pawl 76 has released the same. On the lever 79 which has a recess 79 being depressed, the lever 81 which is pivoted on the pin 81 will also be rocked, through the pin 80 which extends transversely under all the ke s to the blank key being pressed downwards by the lever 79. By rocking the lever 81 the pressure applying member 32 is moved, which acts of the ribbon is released. In order that the feed motion of the ribbon shall not be released at the same time as the key is struck, the recess 79 must be made of a suitable depth, in order that the lever 81 sha1-l be rocked slightly later than the type lever 79. If it be deslred to feed the ribbon forward without a type being written, it is onl necessary tov depress the blank key 87. he unsu ported ends of the type actuated lever 9 are guided in a comb. l

Each keyboard contains eight type keys, each of which corresponds to a sign. The Ico-orclination of the signs to the separate keys may for instance be that shown in the 91 is so constructed that it can comfortably bar 82 having 'a collar 82 a s ring 83 one v on the lever 19 of the shift mechanism be taken into the hollow of the hand, the

thumb being inserted in a gripping or holding member on the lower part of the keyboard carrier, which is not shown in)r the drawing. The eight keys .of each keyboard are only operated with the four fingers of 'the hand. Each finger operates two keys Modifications in the arrangement of the Separateparts andin the construction may of course be made without departing from the spirit of the invention.

i What I claim is: Y

1. A pocket typewriter comprising two 4separate parts, the writing part and lthe operatingpart for operating the said Writing part, ythe writing part having a plurality of type members, the operating part having a keyboard, a plurality of members for transmitting in their longitudinal direction the motion of `the individual keys ofthe keyboard to the corresponding type members, ducts for 'guiding the said transmitting members and conduits for said members forming the physical connection between the Writing part and the operating part, as and for the pu ose set forth.` f l '2. A poc et typewriter comprising two separate parts, the writing part and .the

operating part for operating the said writing part, the writing part having a plurality of y type members, the operating part having a ,separate parts, the writing part and the operating part for operating the said writ ing part, the writing part having a pluralit of type members, one type member for eaci group of phonetically similar vowel sounds, the type members being arranged in a square formation, guides for the said type members, theV four centrally positioned type members and guides being perpendicular to the writing surface and the ty e members and guides at thel periphery oft e square being atan angle tothe four centrally positioned type members and Guides, such `that the type members around the periphery are capable of striking exactly the same place on the Writing surface struck by one of the centrally posltiosed type members, the operating part having a 'key-board, a plurality ot' members for transmitting in their longi- `tudinal Vdirection the motion of the individual keys of the keyboard to the corres' ponding ty e members and ducts for guidnig the Sai 4transmitting members and Jfor physically connectingthe writin part and the operating part, as and for t e purpose set forth. Y

4. A pocket typewriter comprising two separate parts, the writing part .and the operating part for operating 'the saidwritf iig part, the writing part havin a pluralit Vo t ype members, one type mem r for eac group of phonetically similar vowel sounds, lthe operating art having a keyboard, a plurallty of str1 'ng levers `corresponding to the numberof type keys, a detentmember ivoted on one end of each key of the keyard for carrying along the striking lever, on the ke being depressed, anadjustable stop member, a spring for returning the striking lever into its initial osition, on the said lever being released by t e detent member striking the adjustable stop member, a plurality of members for transmitting in their longitudinal' `direction the motionfroin the striking lever, when it is depressed, to the type membersand ducts for guiding the said transmitting members, as set forth.

5; A pocket typewriter comprising two separate parts', the writing part and the op- 4 4crafting part for operating the said writing part.L the writing part having' a pluralit oftype members, one'type member for eac the hooked end can engagf group of phonetically similar vowel sounds, an ink ribbon and means for advancing the said ribbon intermittently, the operating part having a keyboard, a plurality of striking levers corresponding to the number of type keys, a detent member pivoted on one end of each key of the keyboard for carrying along the striking lever, on the key being depressed, an adjustable stop member, a spring for returning the striking lever in to its initial position, on the said leverbeing released bythe detent member striking the adjustable stop member, a lurality of members for 'transmitting in ticir longitudinal direction the motion of the individual keys of the keyboard to the corresponding type members, ducts for guiding the said transmitting members, a blank key for releasing the means for advancing the ink ribbon so that it can advance by one step, a blank key lever and a stop member on the blank key lover near the end of its rocking motion for putting the blank key lever into operation,

as set forth.

G. A pocket typewriter as claimed in claim l and having in the writing part a platen, a two-armeddetent device, a ratchet wheel mounted coaxially with the platen and capable of coacting with the said detent device, a lever on the detent device, a two-armed lever, alink connecting one arm of the twoarmed lever to the lever on the detent device, a'spring always bearing against the other arm of the two-armed lever, means for depressing the former arm of the twoarmed lever in opposition to the spring on the latter arm thereof for causing one arm of therdetent to engage in the teeth of the ratchet wheel and lock the same4 and the other arm of the detent to be disengaged from the teeth of the ratchet wheel, a member having a hooked end, slidable in the said other arm of the detent device, a sprin 'for `pushin `the slidable member outwar s in the sai arm, means for limiting the amount by which it is pushed out to'the thickness of the hooked end and the thickness of a tooth yof the ratchet wheel, such that, on the arm returning under the action of the s ring bearing on the arm of the two-armed ever, between two teeth of the ratchet wh ore the other arm of the detent device releases' the tooth with which it is in engagement, as set forth.

7 A pocket typewriter including a writing part and a keyboard for operating thesame and having in the writin part@ shaft, ,two reels' mounted on the sha one loosely, for receiving a paper band capable of .being wound from the loose reel onto the `other reel, a pinion on the shaft, a toothedv wheel havin an internal ring of teeth meshing with t e said pinion, means for drivin the said wheel, an ink ribbon, tw'o brac ets,

two reels mounted on the l two reels 'journalled on the said two bracks. ets, on .which 'the ink ribbon is wound' -and operating means for the ink ribbon, comprising a trainof gear wheels and a driving o. 5 band running on the hub of the pinion for.

transmlttin motion from the'pinion to the said-ink rib n, as set forth.

8. A- pocket typewriter mcludin'g a writa keyboardfor operating the the writino` part a shaft, shat, one loosely, for receiving a paper band capable of being wound from the loose reel onto the-other ing part and "same and having in reel, a. pinion on the shaft, a toothed wheel havingx an internal ring of teeth meshingwith e said pinion, means for driving the `said wheel, an ink ribbon, two brackets, two reels 'ournalled on the said two brackets,

'26 on lwhich the ink ribbon is wound, operating means for the: ink ribbon2 comprising'ra train of gear wheels and a drivingband running 'o onV the -hub of the pinion for transmitting Yas set motion from the piniontov the ribbon, a. rocking lever supportin the r wheel of the train of gear wh whic is driven b the drivinglband from the pinion, for Aena ling the said ar wheel to caused to engage with eit erink ribbon reel, forth. 9.` A. pocket tipewriter including a writing part and a eyboard` for opera the lsame and having in the writin parttlaniaft, two reels mountedonthe lsha one loosely,

for receiving a pa "er band capable 'of being wound .from the oose reel onto the other reel, a pinion-on the shaft', atoothed wheel having an internal ring of teeth ,meshing with the said pinion, a spring; for

the said wheel and an alarm device for notifying that-the said spring'has run down, as 40 -set forth.

In testimony whereof I have signed mv I name to this specification. A A VOJTGH IHRISKY-. 

